Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
160066lightly pollutedexcellent111excellent
150060goodexcellent101excellent
140060goodexcellent111excellent
130086lightly pollutedexcellent151excellent
120092lightly pollutedexcellent191excellent
110092lightly pollutedexcellent191excellent
1000106moderately pollutedexcellent201excellent
0900115moderately pollutedgood211excellent
0800113moderately pollutedexcellent201excellent
0700119moderately pollutedgood221excellent
0600142heavily pollutedgood211excellent
0500135moderately pollutedgood211excellent
0400103moderately pollutedexcellent201excellent
0300109moderately pollutedexcellent191excellent
020096lightly pollutedexcellent111excellent
0100102moderately pollutedexcellent81excellent
0000124moderately pollutedexcellent121excellent
2300113moderately pollutedexcellent111excellent
2200131moderately pollutedexcellent131excellent
2100140moderately pollutedexcellent181excellent
2000116moderately pollutedexcellent181excellent
1900105moderately pollutedexcellent161excellent
180092lightly pollutedexcellent131excellent
170094lightly pollutedexcellent161excellent